Facilitating atomic switching of graphics-processing units

a technology of graphics processing and atomic switching, which is applied in the field of computer system atomic switching techniques, can solve the problems of reducing battery life, increasing graphics performance, and increasing power consumption, and reducing the cost of these increased graphics capabilities

Inactive Publication Date: 2012-04-19
APPLE INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

The invention provides systems called GPGUs that can be used during different stages when switching between processing elements like CPU/LSI memory. These systems receive requests on behalf of users who want their displays switched over while also receiving notifications about which processors are being driven by each other's threads. This helps them efficiently render images with both types of data at once without interruptions caused by any issues such as delays due to network latency.

Problems solved by technology

The technical problem addressed in this patented text relates to reducing energy usage when transitioning between different types of processing resources such as CPU memory and GRAM while maintaining good image quality at reduced activity levels.

Method used

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  • Facilitating atomic switching of graphics-processing units

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Embodiment Construction

[0023]The following description is presented to enable any person skilled in the art to make and use the embodiments, and is provided in the context of a particular application and its requirements. Various modifications to the disclosed embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be applied to other embodiments and applications without departing from the spirit and scope of the present disclosure. Thus, the present invention is not limited to the embodiments shown, but is to be accorded the widest scope consistent with the principles and features disclosed herein.

[0024]The data structures and code described in this detailed description are typically stored on a computer-readable storage medium, which may be any device or medium that can store code and / or data for use by a computer system. The computer-readable storage medium includes, but is not limited to, volatile memory, non-volatile memory, magnetic and optical

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Abstract

The disclosed embodiments provide a system that configures a computer system to switch between two graphics-processing units (GPUs). During operation, the system receives a request to switch from using a first GPU to using a second GPU to drive the display. In response to this request, the system executes a user thread that copies pixel values from a first framebuffer for the first GPU to a second framebuffer for the second GPU. Next, the user thread initiates a switch from the first framebuffer to the second framebuffer as a signal source for driving the display. Finally, the user thread sends an asynchronous notification of the switch to one or more applications, wherein the asynchronous notification allows the applications to transition from rendering graphics using the first GPU to rendering graphics using the second GPU.

Description

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Claims

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Application Information

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Owner APPLE INC
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